Should YA Books be Adapted for the Screen?

I mean, is there even a point? We can probably go back to 1899, when Cinderella was adapted for the screen from the Brothers Grimm version*. As what may be one of the first book adaptations, you can be sure film-goers left thinking, "Eh. The bOoK waS beTTeR." *(Yes, I did Google "when was the …